Potassium-based dry sorbents for removal of sulfur dioxide at low temperatures

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• 作者：Ho Jin Chae^a ; ¹ ; Soo Chool Lee^b ; ¹ ; Soo Jae Lee^c ; Min Sun Cho^a ; Suk Yong Jung^d ; Chun Yong Ryu^a ; Yong Mok Kwon^a ; Byung Wook Hwang^a ; Joong Beom Lee^e ; Jae Chang Kim^a ; ^{kjchang@knu.ac.kr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：SO2 ; K2CO3 ; Dry sorbent ; Sorption ; K2SO4
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2016
• 出版时间：25 April 2016
• 年：2016
• 卷：36
• 期：Complete
• 页码：35-39
• 全文大小：1174 K

文摘

The SO₂ sorption properties of dry potassium-based sorbents, prepared by impregnation of various supports with potassium carbonate, were investigated at the various water vapor concentrations at a level of 5000 ppm of SO₂. It was found that alkali metal-based sorbents promoted with potassium carbonate could be used as a sorbent for SO₂ sorption at low temperatures (between 30 °C and 60 °C). In particular, the potassium-based sorbents showed an excellent SO₂ sorption capacity of about 310 mg SO₂/g sorbent in the presence of water vapor, while in the absence of water vapor, their SO₂ sorption capacities decreased.